How to define discrete variables in JEplus using EnergyPlus?

edit

Hi,

I am trying to apply different insulation for external walls and different glazing for windows to lower the energy consumption in my project. The problem is I don`t know how could I define and change the variables in EnergyPlus and JEplus.When I ran the EnergyPlus I only saw XPS as insulation material and when I applied Rock wool-0.04 as an insulation material in JEplus, it was defined as Rock and wool separately. I was wondering how could I access the library in EnergyPlus and define variables in JEplus.By the way, I use DesignBuilder as a simulation tool. Thank you in advance.